CN112192746B - Whole installation device of prefabricated T roof beam pterygoid lamina reinforcing bar of road bridge - Google Patents
Whole installation device of prefabricated T roof beam pterygoid lamina reinforcing bar of road bridge Download PDFInfo
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- CN112192746B CN112192746B CN202011128143.2A CN202011128143A CN112192746B CN 112192746 B CN112192746 B CN 112192746B CN 202011128143 A CN202011128143 A CN 202011128143A CN 112192746 B CN112192746 B CN 112192746B
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- wing plate
- trolley
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- steel bar
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B28—WORKING CEMENT, CLAY, OR STONE
- B28B—SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
- B28B23/00—Arrangements specially adapted for the production of shaped articles with elements wholly or partly embedded in the moulding material; Production of reinforced objects
- B28B23/02—Arrangements specially adapted for the production of shaped articles with elements wholly or partly embedded in the moulding material; Production of reinforced objects wherein the elements are reinforcing members
Abstract
The invention discloses an integral installation device for wing plate steel bars of a road and bridge prefabricated T-shaped beam, which comprises a plurality of wing plate steel bar installation trolleys and wing plate positioning trolleys, wherein each wing plate steel bar installation trolley comprises a first trolley body, and a diagonal cable is arranged outside each first trolley body; the bottom of the first vehicle body is provided with a universal wheel; the oblique-pulling bottom is provided with a wheel seat; a direction wheel with a self-locking mechanism is arranged on the wheel seat; a connecting plate is hinged to the outer part of the wheel seat; the other ends of the connecting plates are hinged to the pull rods; a telescopic table is fixed on the first vehicle body; the top surface of the telescopic table is fixedly provided with an installation bedplate; according to the integral installation device for the wing plate steel bars of the road and bridge prefabricated T-shaped beam, disclosed by the invention, the wing plate steel bar installation trolley is used for completing the axial accurate positioning and the radial coarse positioning of the wing plate steel bar framework and the rib plate steel bar framework, and the wing plate positioning trolley is used for realizing the radial and high accurate positioning, so that the operation is simple, and the installation quality is good.
Description
Technical Field
The invention relates to T-beam prefabricating equipment, in particular to an integral installation device for a road and bridge prefabricated T-beam wing plate steel bar, and belongs to the technical field of T-beam prefabricating equipment.
Background
The precast beam is prefabricated in a factory and then is transported to a construction site to be installed and fixed according to design requirements. The T beam is a common precast beam type, a T beam framework is required to be manufactured firstly in the process of prefabricating the T beam, the T beam framework mainly comprises a web framework and a wing plate framework, when the traditional framework is manufactured, the web framework is manufactured firstly, then the wing plate framework is manufactured on the web framework, and due to the fact that the operation sequence exists, the operation period is long, and quick assembly is difficult to achieve; therefore, the assembly of part of the T-beam frameworks tries to assemble the web framework and the wing plate framework separately, and then the final assembly is carried out, but because the length of the T-beam wing plate framework is large and the connection stability is not high, the wing plate framework is easy to deform when being hoisted by adopting equipment such as a traditional gantry crane and the like, so that the quality of a product is influenced; for this reason, chinese patent application No.: 201910241125.6, discloses an integral installation device for a prefabricated T-beam wing plate steel bar of a road and bridge, which can ensure that all parts of a wing plate steel bar framework are stressed uniformly and are not easy to deform in the transportation process; but it can not assist the manufacture of the reinforcing cage of the wing plate, and the positioning is complex, and in addition, the installation and withdrawal after the installation are complex.
Disclosure of Invention
In order to solve the problems, the invention provides an integral installation device for a prefabricated T-shaped beam wing plate steel bar of a road and bridge, which is simple to operate and good in installation quality.
The integral installation device for the wing plate steel bars of the road and bridge prefabricated T-shaped beam comprises a plurality of wing plate steel bar installation trolleys and wing plate positioning trolleys, wherein each wing plate steel bar installation trolley comprises a first trolley body, and a cable is arranged outside each first trolley body; the bottom of the first vehicle body is provided with a universal wheel; the oblique-pulling bottom is provided with a wheel seat; a direction wheel with a self-locking mechanism is arranged on the wheel seat; a connecting plate is hinged to the outer part of the wheel seat; the other ends of the connecting plates are hinged to the pull rods; a telescopic table is fixed on the first vehicle body; the top surface of the telescopic table is fixedly provided with an installation bedplate; connecting seats are arranged at two ends of the mounting bedplate; a plurality of counter bores are formed in the mounting bedplate; a T-shaped positioning plate is inserted in the counter bore; a row of inserting grooves are formed in the positioning rod at the lower part of the T-shaped positioning plate; a bayonet lock is inserted into the inner side of the insertion groove; the front side of the mounting bedplate is movably inserted with an anti-falling bolt; the front end of the first trolley is hinged with an anti-collision pressing plate; the anti-collision pressing plate is pressed with a limiting plate on the vehicle body through a strong spring; the wing plate positioning trolley comprises a second trolley body, wherein universal wheels are mounted on the front side of the second trolley body, and wheels with self-locking mechanisms are mounted on the rear side of the second trolley body; a top seat is fixed on the top surface of the second vehicle body; the inner side of the top seat is provided with a telescopic rod; an L-shaped positioning table is fixed at the telescopic end of the telescopic rod; a hydraulic telescopic piece is arranged between the top seat and the positioning table; a slide rail is arranged on the positioning table; an L-shaped sliding plate is movably arranged on the sliding rail; the end, close to the right angle, of the positioning table is screwed with a screw rod body which is pressed with the outside of the sliding plate.
Furthermore, two ends of the positioning table are provided with connecting seats; a wing plate positioning trolley is arranged on the wing plate steel bar mounting trolley at intervals; connecting seats of the adjacent mounting bedplate are connected through a connecting column; and the adjacent mounting bedplate and the positioning table are connected through a connecting column.
Furthermore, connecting seats of the adjacent mounting bedplate are connected through connecting columns; a wing plate positioning trolley is arranged on the wing plate steel bar mounting trolley at intervals; and the positioning platform of the wing plate positioning trolley is arranged at the bottom of the connecting column.
Further, the hydraulic telescopic piece is a hydraulic jack or a hydraulic lifting fork.
Furthermore, the connecting seat and the connecting column are in screw barrel connection or flange connection.
Further, the installation process of the wing plate steel bar installation trolley is as follows:
firstly, installing wing plate steel bar installation trolleys, and independently connecting a plurality of wing plate steel bar installation trolleys in series through connecting columns or connecting wing plate steel bar installation trolleys in series with wing plate positioning trolleys;
secondly, the steel reinforcement framework is distributed, according to the structure of the steel reinforcement framework, the T-shaped positioning plate at the corresponding position is pulled out, the bayonet lock is inserted into the inserting groove at the corresponding height, and then the steel reinforcement framework is sequentially placed on the installation bedplate and the T-shaped positioning plate;
thirdly, binding the wing plate steel reinforcement framework, and binding and/or welding the steel reinforcement framework which is completed with the layout;
and finally, pulling out the bayonet lock, and embedding the T-shaped positioning plate into the counter bore.
Further, the transportation process of the wing plate steel bar mounting trolley is as follows:
firstly, pulling a pull rod, wherein the pull rod drives a connecting plate, so that a direction wheel is steered to the axial direction of a steel reinforcement framework, then, pushing the whole wing plate steel reinforcement installation trolley to reach the axial direction pre-positioning, then, pushing the pull rod, the pull rod pushes the connecting plate, so that the direction wheel is steered to the radial direction of the steel reinforcement framework, and then, pushing the whole wing plate steel reinforcement installation trolley to reach the radial direction pre-positioning; the pushing process generates deviation, the direction can be adjusted repeatedly through the pull rod, the wing plate steel bar installation trolley is pushed to respond, after accurate positioning is completed, the anti-collision pressing plate of the wing plate steel bar installation trolley is pressed onto the rib plate steel bar framework of the T-shaped beam wing plate, so that the positioning of the wing plate steel bar installation trolley is completed, the direction wheel is locked, then the anti-falling bolt is pulled out, and the fixation of the wing plate steel bar framework and the rib plate steel bar framework is waited;
further, the transportation process of the wing plate positioning trolley is as follows:
according to the installation structure of the wing plate positioning trolley, the wing plate positioning trolley synchronously acts with the wing plate steel bar installation trolley, or the wing plate steel bar installation trolley is sent to an installation position after the position positioning is finished;
the wing plate steel bar mounting trolley is sent to a designated position through a universal wheel and wheels at the bottom of the wing plate steel bar mounting trolley, and wheel locking is completed through a self-locking mechanism of the wheels; then, the hydraulic telescopic piece drives the positioning table to move upwards, in the process of moving upwards, the telescopic rod slides to guide, when the hydraulic telescopic piece sends the wing plate steel reinforcement framework to a preset position, the action is stopped, and then the screw rod body pushes the sliding plate to enable the wing plate steel reinforcement framework on the sliding plate to be pressed to the installation position; and waiting for the installation of the wing plate steel reinforcement framework and the rib plate steel reinforcement framework.
Further, the wing plate steel bar installation trolley and the wing plate positioning trolley reset process is as follows:
after the wing plate steel reinforcement framework and the rib plate steel reinforcement framework are installed, the hydraulic telescopic piece is controlled to reset firstly, then the wing plate steel reinforcement installation trolley and the wing plate positioning trolley are synchronously withdrawn, or the wing plate positioning trolley is reset firstly, and then the wing plate steel reinforcement installation trolley is reset.
Compared with the prior art, the integral installation device for the wing plate steel bar of the road and bridge prefabricated T-shaped beam is respectively provided with the wing plate steel bar installation trolley and the wing plate positioning trolley, the height of the wing plate steel bar installation trolley is designed to be suitable for manufacturing the wing plate steel bar of the T-shaped beam, the wing plate steel bar manufacturing is completed on the wing plate steel bar installation trolley, meanwhile, the wing plate steel bar installation trolley is used for completing the axial accurate positioning and the radial coarse positioning of the wing plate steel bar framework and the rib plate steel bar framework, and the wing plate positioning trolley is used for realizing the radial and height accurate positioning.
Drawings
Fig. 1 is a schematic structural view of the wing plate steel bar mounting trolley.
Fig. 2 is a schematic view of the enlarged structure of fig. 1A according to the present invention.
FIG. 3 is a schematic structural view of the wing plate positioning trolley of the present invention.
Detailed Description
Example 1:
as shown in fig. 1 to 3, the integral installation device for the wing plate steel bars of the road and bridge prefabricated T-beam comprises a plurality of wing plate steel bar installation trolleys and wing plate positioning trolleys, wherein each wing plate steel bar installation trolley comprises a first trolley body 1, and a diagonal cable 2 is arranged outside the first trolley body 1; the bottom of the first vehicle body 1 is provided with a universal wheel 3; the bottom of the diagonal cable 2 is provided with a wheel seat 4; the wheel seat 4 is provided with a direction wheel 5 with a self-locking mechanism; the outer part of the wheel seat 4 is hinged with a connecting plate 6; the other ends of the connecting plates 6 are hinged to pull rods 7; a telescopic table 8 is fixed on the first vehicle body 1; the top surface of the telescopic table 8 is fixed with an installation bedplate 9; two ends of the mounting bedplate 9 are provided with connecting seats 10; a plurality of counter bores 11 are arranged on the mounting bedplate 9; a T-shaped positioning plate 12 is inserted in the counter bore 11; a row of inserting grooves 13 are formed in the positioning rod at the lower part of the T-shaped positioning plate 12; a bayonet lock is inserted into the inner side of the insertion groove 13; an anti-falling bolt 14 is movably inserted in the front side of the mounting bedplate 9; the front end of the first trolley 1 is hinged with an anti-collision pressure plate 15; the anti-collision pressure plate 15 is pressed with a limit plate 17 on the vehicle body through a strong spring 16; the wing plate positioning trolley comprises a second trolley body 18, wherein the front side of the second trolley body 18 is provided with a universal wheel 3, and the rear side of the second trolley body 18 is provided with a wheel 19 with a self-locking mechanism; a top seat 20 is fixed on the top surface of the second vehicle body 18; the inner side of the top seat 20 is provided with a telescopic rod 21; an L-shaped positioning table 22 is fixed at the telescopic end of the telescopic rod 21; a hydraulic telescopic piece 23 is arranged between the top seat 21 and the positioning table 22; a slide rail 24 is arranged on the positioning table 22; an L-shaped sliding plate 25 is movably arranged on the sliding rail 24; the positioning table 22 is screwed with a screw body 26 which is pressed with the outside of the sliding plate near the right-angle end.
Wherein, two ends of the positioning table 22 are provided with connecting seats 10; a wing plate positioning trolley is arranged on the wing plate steel bar mounting trolley at intervals; the connecting seats of the adjacent mounting bedplate 9 are connected through a connecting column; the adjacent mounting bedplate and the positioning table 22 are connected through a connecting column.
In another embodiment, the connecting seats of the adjacent mounting bedplate 9 are connected through a connecting column; a wing plate positioning trolley is arranged on the wing plate steel bar mounting trolley at intervals; and a positioning table 22 of the wing plate positioning trolley is arranged at the bottom of the connecting column.
Wherein, the hydraulic telescopic part 23 is a hydraulic jack or a hydraulic lifting fork. The connecting seat 10 and the connecting column are connected by a screw and a screw cylinder or are connected by a flange.
The installation process of the wing plate steel bar installation trolley is as follows:
firstly, installing wing plate steel bar installation trolleys, and independently connecting a plurality of wing plate steel bar installation trolleys in series through connecting columns or connecting wing plate steel bar installation trolleys in series with wing plate positioning trolleys;
secondly, the steel reinforcement framework is distributed, according to the structure of the steel reinforcement framework, the T-shaped positioning plate at the corresponding position is pulled out, the bayonet lock is inserted into the inserting groove at the corresponding height, and then the steel reinforcement framework is sequentially placed on the installation bedplate and the T-shaped positioning plate;
thirdly, binding the wing plate steel reinforcement framework, and binding and/or welding the steel reinforcement framework which is completed with the layout;
and finally, pulling out the bayonet lock, and embedding the T-shaped positioning plate into the counter bore.
Wherein, its transportation process of pterygoid lamina reinforcing bar installation dolly is as follows:
firstly, pulling a pull rod, wherein the pull rod drives a connecting plate, so that a direction wheel is steered to the axial direction of a steel reinforcement framework, then, pushing the whole wing plate steel reinforcement installation trolley to reach the axial direction pre-positioning, then, pushing the pull rod, the pull rod pushes the connecting plate, so that the direction wheel is steered to the radial direction of the steel reinforcement framework, and then, pushing the whole wing plate steel reinforcement installation trolley to reach the radial direction pre-positioning; the pushing process generates deviation, the direction can be adjusted repeatedly through the pull rod, the wing plate steel bar installation trolley is pushed to respond, after accurate positioning is completed, the anti-collision pressing plate of the wing plate steel bar installation trolley is pressed onto the rib plate steel bar framework of the T-shaped beam wing plate, so that the positioning of the wing plate steel bar installation trolley is completed, the direction wheel is locked, then the anti-falling bolt is pulled out, and the fixation of the wing plate steel bar framework and the rib plate steel bar framework is waited;
wherein, its transportation process of pterygoid lamina positioning trolley is as follows:
according to the installation structure of the wing plate positioning trolley, the wing plate positioning trolley synchronously acts with the wing plate steel bar installation trolley, or the wing plate steel bar installation trolley is sent to an installation position after the position positioning is finished;
the wing plate steel bar mounting trolley is sent to a designated position through a universal wheel and wheels at the bottom of the wing plate steel bar mounting trolley, and wheel locking is completed through a self-locking mechanism of the wheels; then, the hydraulic telescopic piece drives the positioning table to move upwards, in the process of moving upwards, the telescopic rod slides to guide, when the hydraulic telescopic piece sends the wing plate steel reinforcement framework to a preset position, the action is stopped, and then the screw rod body pushes the sliding plate to enable the wing plate steel reinforcement framework on the sliding plate to be pressed to the installation position; and waiting for the installation of the wing plate steel reinforcement framework and the rib plate steel reinforcement framework.
The wing plate steel bar mounting trolley and the wing plate positioning trolley reset process are as follows:
after the wing plate steel reinforcement framework and the rib plate steel reinforcement framework are installed, the hydraulic telescopic piece is controlled to reset firstly, then the wing plate steel reinforcement installation trolley and the wing plate positioning trolley are synchronously withdrawn, or the wing plate positioning trolley is reset firstly, and then the wing plate steel reinforcement installation trolley is reset.
The above-described embodiments are merely preferred embodiments of the present invention, and all equivalent changes or modifications of the structures, features and principles described in the claims of the present invention are included in the scope of the present invention.
Claims (8)
1. The utility model provides a prefabricated T roof beam pterygoid lamina reinforcing bar integral erection device of road bridge which characterized in that: the wing plate steel bar installing trolley comprises a first trolley body, and an inclined pull is arranged outside the first trolley body; the bottom of the first vehicle body is provided with a universal wheel; the oblique-pulling bottom is provided with a wheel seat; a direction wheel with a self-locking mechanism is arranged on the wheel seat; a connecting plate is hinged to the outer part of the wheel seat; the other ends of the connecting plates are hinged to the pull rods; a telescopic table is fixed on the first vehicle body; the top surface of the telescopic table is fixedly provided with an installation bedplate; connecting seats are arranged at two ends of the mounting bedplate; a plurality of counter bores are formed in the mounting bedplate; a T-shaped positioning plate is inserted in the counter bore; a row of inserting grooves are formed in the positioning rod at the lower part of the T-shaped positioning plate; a bayonet lock is inserted into the inner side of the insertion groove; the front side of the mounting bedplate is movably inserted with an anti-falling bolt; the front end of the first trolley is hinged with an anti-collision pressing plate; the anti-collision pressing plate is pressed with a limiting plate on the vehicle body through a strong spring; the wing plate positioning trolley comprises a second trolley body, wherein universal wheels are mounted on the front side of the second trolley body, and wheels with self-locking mechanisms are mounted on the rear side of the second trolley body; a top seat is fixed on the top surface of the second vehicle body; the inner side of the top seat is provided with a telescopic rod; an L-shaped positioning table is fixed at the telescopic end of the telescopic rod; a hydraulic telescopic piece is arranged between the top seat and the positioning table; a slide rail is arranged on the positioning table; an L-shaped sliding plate is movably arranged on the sliding rail; the end, close to the right angle, of the positioning table is screwed with a screw rod body which is pressed with the outer part of the sliding plate; connecting seats are arranged at two ends of the positioning table; a wing plate positioning trolley is arranged on the wing plate steel bar mounting trolley at intervals; connecting seats of the adjacent mounting bedplate are connected through a connecting column; and the adjacent mounting bedplate and the positioning table are connected through a connecting column.
2. The integral installation device for the reinforcing steel bars of the road and bridge prefabricated T-shaped beam wing plate according to claim 1, is characterized in that: connecting seats of the adjacent mounting bedplate are connected through a connecting column; a wing plate positioning trolley is arranged on the wing plate steel bar mounting trolley at intervals; and the positioning platform of the wing plate positioning trolley is arranged at the bottom of the connecting column.
3. The integral installation device for the reinforcing steel bars of the road and bridge prefabricated T-shaped beam wing plate according to claim 1, is characterized in that: the hydraulic telescopic piece is a hydraulic jack or a hydraulic lifting fork.
4. The integral installation device for the reinforcing steel bars of the road and bridge prefabricated T-shaped beam wing plate according to claim 1, is characterized in that: the connecting seat and the connecting column are in screw barrel connection or flange connection.
5. The integral installation device for the reinforcing steel bars of the road and bridge prefabricated T-shaped beam wing plate according to claim 1, is characterized in that: the installation process of the wing plate steel bar installation trolley is as follows:
firstly, installing wing plate steel bar installation trolleys, and independently connecting a plurality of wing plate steel bar installation trolleys in series through connecting columns or connecting wing plate steel bar installation trolleys in series with wing plate positioning trolleys;
secondly, the steel reinforcement framework is distributed, according to the structure of the steel reinforcement framework, the T-shaped positioning plate at the corresponding position is pulled out, the bayonet lock is inserted into the inserting groove at the corresponding height, and then the steel reinforcement framework is sequentially placed on the installation bedplate and the T-shaped positioning plate;
thirdly, binding the wing plate steel reinforcement framework, and binding and/or welding the steel reinforcement framework which is completed with the layout;
and finally, pulling out the bayonet lock, and embedding the T-shaped positioning plate into the counter bore.
6. The integral installation device for the reinforcing steel bars of the road and bridge prefabricated T-shaped beam wing plate according to claim 1, is characterized in that: the transportation process of the wing plate steel bar mounting trolley is as follows:
firstly, pulling a pull rod, wherein the pull rod drives a connecting plate, so that a direction wheel is steered to the axial direction of a steel reinforcement framework, then, pushing the whole wing plate steel reinforcement installation trolley to reach the axial direction pre-positioning, then, pushing the pull rod, the pull rod pushes the connecting plate, so that the direction wheel is steered to the radial direction of the steel reinforcement framework, and then, pushing the whole wing plate steel reinforcement installation trolley to reach the radial direction pre-positioning; promote the process and produce the skew, can repeatedly pass through pull rod adjustment direction to respond through promoting pterygoid lamina steel bar installation dolly, accomplish the accurate positioning back, press its anticollision clamp plate of pterygoid lamina steel bar installation dolly on T roof beam pterygoid lamina steel bar skeleton, thereby accomplish the location of pterygoid lamina steel bar installation dolly, and lock the direction wheel, then, extract the anticreep bolt, wait for pterygoid lamina steel bar skeleton and rib plate steel bar skeleton's fixed.
7. The integral installation device for the reinforcing steel bars of the road and bridge prefabricated T-shaped beam wing plate according to claim 1, is characterized in that: the wing plate positioning trolley comprises the following transfer process:
according to the installation structure of the wing plate positioning trolley, the wing plate positioning trolley synchronously acts with the wing plate steel bar installation trolley, or the wing plate steel bar installation trolley is sent to an installation position after the position positioning is finished;
the wing plate steel bar mounting trolley is sent to a designated position through a universal wheel and wheels at the bottom of the wing plate steel bar mounting trolley, and wheel locking is completed through a self-locking mechanism of the wheels; then, the hydraulic telescopic piece drives the positioning table to move upwards, in the process of moving upwards, the telescopic rod slides to guide, when the hydraulic telescopic piece sends the wing plate steel reinforcement framework to a preset position, the action is stopped, and then the screw rod body pushes the sliding plate to enable the wing plate steel reinforcement framework on the sliding plate to be pressed to the installation position; and waiting for the installation of the wing plate steel reinforcement framework and the rib plate steel reinforcement framework.
8. The integral installation device for the reinforcing steel bars of the road and bridge prefabricated T-shaped beam wing plate according to claim 1, is characterized in that: the wing plate steel bar mounting trolley and the wing plate positioning trolley reset process are as follows:
after the wing plate steel reinforcement framework and the rib plate steel reinforcement framework are installed, the hydraulic telescopic piece is controlled to reset firstly, then the wing plate steel reinforcement installation trolley and the wing plate positioning trolley are synchronously withdrawn, or the wing plate positioning trolley is reset firstly, and then the wing plate steel reinforcement installation trolley is reset.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011128143.2A CN112192746B (en) | 2020-10-21 | 2020-10-21 | Whole installation device of prefabricated T roof beam pterygoid lamina reinforcing bar of road bridge |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011128143.2A CN112192746B (en) | 2020-10-21 | 2020-10-21 | Whole installation device of prefabricated T roof beam pterygoid lamina reinforcing bar of road bridge |
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| Publication Number | Publication Date |
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| CN112192746A CN112192746A (en) | 2021-01-08 |
| CN112192746B true CN112192746B (en) | 2021-09-07 |
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| CN202011128143.2A Active CN112192746B (en) | 2020-10-21 | 2020-10-21 | Whole installation device of prefabricated T roof beam pterygoid lamina reinforcing bar of road bridge |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8533956B2 (en) * | 2009-11-25 | 2013-09-17 | Jack Perry | Rebar installation system and method of securing rebar |
| CN205735483U (en) * | 2016-05-30 | 2016-11-30 | 中交一公局第五工程有限公司 | Concrete prefabricated T beam moulding bed |
| CN106738308A (en) * | 2017-01-17 | 2017-05-31 | 中国建筑第七工程局有限公司 | Precast T-Beam reinforcing bar molding bed rack system |
| CN206796168U (en) * | 2017-03-20 | 2017-12-26 | 中建五局土木工程有限公司 | The complete erecting device of prefabricated case beam reinforcing bar is used in construction |
| CN206971092U (en) * | 2017-07-11 | 2018-02-06 | 山东东泰工程咨询有限公司 | Roof steel bar colligation chassis |
| CN208615041U (en) * | 2018-07-09 | 2019-03-19 | 中交第四公路工程局有限公司 | A kind of prefabricated case beam door rebar positioning bogie |
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